14 
* P. LAMELLATA. Flem. Brit. An., p. 456. Numerous 
in a reddish sandstone, from deep water, drawn up by * 
fisherman’s hook. Mr. Bellamy says it is not uncommon 
at Plymouth. 
GASTROCHiENA. 
GENERIC CHARACTER: The shell bivalve, the valves 
equal, rather wedge shaped, gaping very much; the an- 
terior aperture large, oval, oblique; scarcely any aperture 
posteriorly. Hinge, linear, marginal, without teeth. 
G. HIANS. Mya Dubia. Turt. Lin. Pen. Brit. Zo ., 
vol. 4, pi. 44, lig. 19, M. Pboladia. Mont. Test. Brit., 
vol. 1, p. 28. G. H. Flem. Brit. An., p. 458. Scarce. 
I have seen it taken alive from the cavity of a stone front 
deep water. 
SOLENACEA . 
The Shell transversely elongated, gaping only at the 
lateral extremities. Ligament external. Accessary pieces 
none. 
SOLEN. 
GENERIC CHARACTER: Shell bivalve, the valves 
equal, transversely elongated, gaping at both ends, beaks 
small, not projecting. Ligament external, near the hinge- 
* S. SILIQUA. Turt. Lin. Pen. Brit. Zo., vol. 4, pi. 45, 
fig. 20. Mont. Test. Brit., vol. 1, p. 46. Stew Elem., vol- 
2, p. 369. Flem. Brit. An., p. 459. Razor Shell. FroU 1 
the specimens and fragments found lying on the shore, 
this animal seems not uncommon ; but several circutU' 
stances render it not easy to he found in its living state. 
S. PELLUCIDUS. Turt, Lin. Pen. Brit. Zo., vol. 4, 
pi. 46, fig. 23. Mont. Test. Brit., vol. 1, p. 49. Flem- 
Brit. An., p. 459. Rare ; and the more so, that it must b e 
taken alive, to be obtained perfect. Montagu obtained lt 
in Cornwall, and 1 possess a specimen from Ireland. 
S. DECLIVIS. Flem. Brit. An., p. 460. Dr. Fleming’ 
who is the only authority for this shell, reports it as occu r ' 
ing in the Scilly Islands. , 
S. ANTIQ GATES. S. Cultcllus. Pen. Brit. Zo., vol. 4 > 
pi. 46, fig. 25, but not of Linneus ; S. A. Mont. Test. Bn 1 -' 
vol. 1, p. 52. Flem. Brit. An., p. 52. Rare. Montagu 
obtained a specimen near Looe ; and it has been found a 
Gorran by Mr. Peach. 
MYA III A. 
Ligament internal; one large spoonsliaped tooth, in 
or both valves, to the cavity of which the. ligament is attache 
Shell gaping at one or both of its sides. 
MYA. 
GENERIC CHARACTER: Shell bivalve, transverse* 
gaping at both ends; with one large cardinal tooth in 1 
